At the end of the 1920s Soviet film enjoyed a well-deserved worldwide reputation but within a short time the fame and influence of the great directors was lost: the golden age was brief and the eclipse sudden and long lasting. The coming of the sound film made the famous 'Russian montage' outdated, and it was therefore a factor in the decline. But far more important in destroying the reputation of Soviet cinema were the political changes that took place in the early 1930s.